{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease"], "input": "It differs from this and both the classical and connatal forms of PMD in that it is relatively mild in form , onset is delayed beyond age 2 years , nystagmus is absent , tremors are prominent , mental retardation is not severe , some patients show dementia or personality disorders , the disease is progressive rather than static in some , and several females show signs of disease ."}
{"Disease": ["PMD", "nystagmus", "tremors", "mental retardation", "dementia", "personality disorders"]}